A PIC16F84 drive servo motors. It receives commands from a host computer via a standard RS232 serial interface. Supports 4 servo motors and 4 digital outputs. Can be modified for 8 servo motors.
http://www.digitalnemesis.com/ash/projects/picservo/
Automatic baud-rate detection is desirable in many applications. Microchip standard USART module that the company embeds in most of its PIC microcontrollers lends itself to a simple and easily implemented automatic baud-detection scheme.
http://www.edn.com/article/CA238424.html
This circuit can be used to operate an electric strike or an electromagnetic lock on a door. It is not the door being opened or closed, but a small electromagnetic strike which unlocks the door. The opener has the following features currently programmed in software.
http://jap.hu/electronic/door.html
One night during the perpetual boredom that is U of I Summer Session II, Joel Jordan and Jason Gallicchio had a vision...a vision that would change the ACM lab in the Digital Computer Lab forever.
http://www.acm.uiuc.edu/sigarch/projects/welcome/
Some working notes about the use of a microchip PIC 16F676 to analyse and measure the effectiveness of the garden solar light.
http://www.dougrice.plus.com/rt004/sr3/Logger.html
I finally got some small 433MHz radio transmitters and receivers and I needed an encoder/decoder circuit to make use of them for controlling equipment remotely. One could realize this by using Motorola MC145026-8 integrated circuits as well, but they need space and a few external components that must be calibrated by the user.
http://jap.hu/electronic/codec-v4.0.html
This PIC16F84a based repeater DTMF controller is very simple and economical to build. It also gives you hand-on experience of using and programming PIC Micro controllers. Controller measures 10cm X 6 CM and may be housed in your repeater project enclosure.
http://products.foxdelta.com/repeater.htm
This is to try the Sharp GP2Y0D340K infrared object detector. It is cheap, the disadvantage is that is will detect an object but it has no indication of the distance of this object. The detection range is highly reflectiveness (thus color) dependent.
http://members.home.nl/b.vandam/lonely/pagina22.html
The prototype has power consumption of 0.5 mA running with the video cable disconnected from the TV set, and 4.5 mA when the cable is connected. So most of the power goes to drive the 75 ohm video line.
http://hyvatti.iki.fi/~jaakko/pic/pong/
A simple project to get to know the 18F242. A flashing LED with the frequency controlled by a variable resistor. Turn left to increase the flashing frequence, turn right to reduce.
http://members.home.nl/b.vandam/lonely/pagina18.html